Stabilized polyolefin composition
    1.
    发明授权
    Stabilized polyolefin composition 失效
    稳定的聚烯烃组合物

    公开(公告)号:US5356964A

    公开(公告)日:1994-10-18

    申请号:US988696

    申请日:1992-12-10

    摘要: A polyolefin composition comprising a polyolefin, and the following components:(A) a phenolic compound such as 1,3,5-tris(3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate;(B) an acrylate compound represented by the formula (I): ##STR1## wherein R.sup.1 is an alkyl of 1 to 5 carbon atoms, R.sup.2 is an alkyl of 1 to 8 carbon atoms, R.sup.3 is hydrogen or an alkyl of 1 to 8 carbon atoms, and R.sup.4 is hydrogen or methyl;(C) an organic phosphorous compound such as bis(2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite; and(D) a hindered piperidine compound such as poly[{6-(1,1,3,3-tetramethylbutyl)imino-1,3,5-triazin-2,4-diyl}{(2,2,6,6-tetramethyl-4-piperidyl)imino}hexamethylene{(2,2,6,6-tetramethyl-4-piperidyl)imino}]. This composition is stable against thermal processing, thermal oxidation, light oxidation and discoloration, and it is especially useful for fibers and films.

    摘要翻译: 包含聚烯烃的聚烯烃组合物和以下组分:(A)酚化合物如1,3,5-三(3,5-二叔丁基-4-羟基苄基)异氰脲酸酯; (B)由式(I)表示的丙烯酸酯化合物:其中R 1是1至5个碳原子的烷基,R 2是1至8个碳原子的烷基,R 3是氢或 1至8个碳原子,R4为氢或甲基; (C)有机磷化合物如双(2,6-二叔丁基-4-甲基苯基)季戊四醇二亚磷酸酯; 和(D)受阻哌啶化合物如聚[{6-(1,1,3,3-四甲基丁基)亚氨基-1,3,5-三嗪-2,4-二基} {(2,2,6, 6-甲基-4-哌啶基)亚氨基}六亚甲基{(2,2,6,6-四甲基-4-哌啶基)亚氨基}〕。 该组合物对于热加工,热氧化,光氧化和变色是稳定的,并且对纤维和薄膜特别有用。

    Thermoplastic resin composition
    4.
    发明授权
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:US5981638A

    公开(公告)日:1999-11-09

    申请号:US111905

    申请日:1993-08-26

    CPC分类号: C08F279/02 C08K5/134

    摘要: In order to prevent a thermoplastic resin possessing an unsaturated nitrile unit from discoloration, the thermoplastic resin prepared by copolymerizing at least an unsaturated nitrile compound as a polymerizing component in the presence or absence of a rubbery polymer is blended with 2,4-di-t-amyl-6-[1-(3,5-di-t-amyl-2-hydroxyphenyl)ethyl]phenyl acrylate. The resulting composition shows little discoloration during the production and processing stages.

    摘要翻译: 为了防止具有不饱和腈单元的热塑性树脂变色,通过在存在或不存在橡胶状聚合物的情况下将至少不饱和腈化合物作为聚合组分共聚制备的热塑性树脂与2,4-二 - 丙基-6-(1-(3,5-二叔戊基-2-羟基苯基)乙基]苯基酯。 所得组合物在生产和加工阶段显示出很小的变色。

    Production of thermoplastic resin having high impact resistance
    5.
    发明授权
    Production of thermoplastic resin having high impact resistance 失效
    耐冲击性高的热塑性树脂的制造

    公开(公告)号:US5281646A

    公开(公告)日:1994-01-25

    申请号:US947560

    申请日:1992-09-21

    CPC分类号: C08F285/00 C08K5/107

    摘要: In a process for producing a thermoplastic resin by emulsion polymerization using a conjugated diene rubber, an aromatic vinyl compound and a vinyl cyanide compound, and by successive flocculation and direct pelletizing, the direct pelletizing is effected in the presence of a phenolic compound represented by ##STR1## wherein R.sup.1 and R.sup.4 are each hydrogen or methyl, and R.sup.2 and R.sup.3 are each an alkyl of 1 to 9 carbon atoms. The use of the phenolic compound is effective to prevent the resin from thermal deterioration during the direct pelletizing, thereby producing the thermoplastic resin excellent in properties such as impact resistance.

    摘要翻译: 在通过使用共轭二烯橡胶,芳香族乙烯基化合物和乙烯基氰化合物的乳液聚合制造热塑性树脂的方法中,通过连续的絮凝和直接造粒,直接造粒是在(( *化学结构*)其中R1和R4各自为氢或甲基,R2和R3各自为1至9个碳原子的烷基。 使用酚类化合物有效地防止树脂在直接造粒期间的热劣化,从而制造出耐冲击性等优异的热塑性树脂。

    Isocyanuric acid derivative useful as a light stabilizer
    6.
    发明授权
    Isocyanuric acid derivative useful as a light stabilizer 失效
    可用作光稳定剂的异氰脲酸衍生物

    公开(公告)号:US5182390A

    公开(公告)日:1993-01-26

    申请号:US783225

    申请日:1991-10-28

    CPC分类号: C07D401/14 C08K5/34926

    摘要: Tris[2-hydroxy-3-(2,2,6,6-tetramethyl-4-piperidylamino)propyl] isocyanurate is useful as a light stabilizer for organic materials. A composition comprising an organic material and the isocyanurate is stable against light and also excellent in heat resistance. The isocyanurate can be produced by the reaction between tris(2,3-epoxypropyl) isocyanurate and 4-amino-2,2,6,6-tetramethylpiperidine.

    摘要翻译: 三[2-羟基-3-(2,2,6,6-四甲基-4-哌啶基氨基)丙基]异氰脲酸酯可用作有机材料的光稳定剂。 包含有机材料和异氰脲酸酯的组合物对光稳定并且耐热性也优异。 异氰脲酸酯可以通过三(2,3-环氧丙基)异氰脲酸酯和4-氨基-2,2,6,6-四甲基哌啶之间的反应来制备。